This custom email provider allows Kentico to send emails generated in CMS via SendGrid API (uses V3 of API, described here https://sendgrid.com/docs/API_Reference/api_v3.html).

Features:
- sending emails via SendGrid API (especially useful when sending via SMTP is forbidden)
- Kentico out-of-the-box email queue support
- error logging into Event log

Installation instructions are included in the package.